01-22-2018, 04:16 PM
27.5gr was a good accuracy node with AR-Comp in my rifle but it showed significant pressure signs (flat primers, ejector indentations, extractor wipes, etc.) so be cautious (like maybe don't go there). I'm going to explore HBN coated bullets and 27.6gr of AR-Comp could be just right with coated bullets.
I've seen reports from others who found an accuracy node around 26.8gr/123gr/#450 which didn't show pressure signs and that's where I'm going next, after a failure with Power Pro 2000-MR (a flier in every group and significant temperature sensitivity). Once the node is found I'll introduce the HBN coated bullets and look for the node again.
I've seen reports from others who found an accuracy node around 26.8gr/123gr/#450 which didn't show pressure signs and that's where I'm going next, after a failure with Power Pro 2000-MR (a flier in every group and significant temperature sensitivity). Once the node is found I'll introduce the HBN coated bullets and look for the node again.

